• Proceedings of the Korean Information Science Society Conference
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• 2006.10a
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• pp.419-423
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• 2006

그리드 환경에서 어플리케이션 컨텐츠는 특정한 문제 해결을 위한 실질적인 작업이며, 그리드 자원에 분산 배포 되고 서로 연관되어 실행되기 때문에 협업 환경을 구성하는 것은 매우 중요한 부분이다. 그리고 대부분의 협업은 워크플로우를 통하여 구체화 되고, 그리드 환경에서 협업 처리를 위한 미들웨어로는 Globus toolkit이 대표적이다. 하지만 이 미들웨어는 그리드 환경 구축을 위한 기본 서비스들만을 제공하고, 협업을 할 수 있는 워크풀로우 생성, 작업 스케줄링, 어플리케이션 컨텐츠 관리 같은 부분은 적용 되지 않는다. 또한 Globus Toolkit은 대형화된 그리드 커뮤니티 구성에는 적합하나, 소규모 PC 기반에는 부적합하다. 따라서 본 논문에서는 PC 기반 그리드 환경에서 소규모 협업 처리에 효율적인 어플리케이션 서비스 시스템을 제안한다. 어플리케이션 컨텐츠 배포, PC기반으로 구성된 자원관리등의 역할을 통해 효율적인 협업 환경을 지원한다. 또한 워크풀로우는 어플리케이션 컨탠츠 연관관계 사전을 만들어 협업에 필요한 어플리케이션 컨탠츠간의 정보 및 연관 관계를 표현한다.

• Journal of Korea Society of Digital Industry and Information Management
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• v.16 no.4
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• pp.43-53
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• 2020

There are three standards for FIDO1 authentication technology: Universal Second Factor (U2F), Universal Authentication Framework (UAF), and Client to Authenticator Protocols (CTAP). FIDO2 refers to the WebAuthn standard established by W3C for the creation and use of a certificate in a web application that complements the existing CTAP. In Korea, the FIDO certified market is dominated by UAF, which deals with standards for smartphone (Android, iOS) apps owned by the majority of the people. As the market requires certification through FIDO on PCs, FIDO Alliance and W3C established standards that can be certified on the platform-independent Web and published 『Web Authentication: An API for Accessing Public Key Credentials Level 1』 on March 4, 2019. Most PC do not contain biometrics, so they are not being utilized contrary to expectations. In this paper, we intend to present a model that allows login in PC environment through biometric recognition of smartphone and FIDO UAF authentication. We propose a model in which a user requests login from a PC and performs FIDO authentication on a smartphone, and authentication is completed on the PC without any other user's additional gesture.

• Proceedings of the KAIS Fall Conference
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• 2010.11a
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• pp.259-262
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• 2010

현대 사회에서 스마트폰은 손안의 PC라는 말이 있을 정도로 작지만 많은 기능들을 제공하고, PC와 마찬가지로 개인적이고 중요한 정보들을 저장할 수 있다. 스마트폰의 활성화로 인해 좋은 부분도 있지만 모바일 환경의 무선 보안 문제 또한 부각되고 있다. 본 논문에서는 스마트폰 환경에서 무선 AP를 통해 무선 네트워크 서비스를 이용할 시 문제점들을 보완하고자 3G망을 통하여 암호화된 값을 보내주고 대칭키, PKI, 전자서명을 사용하였다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2001.11a
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• pp.315-316
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• 2001

현대인들의 생활영역이 실외에서 실내로 점차 이동됨에 따라 실내 공기오염에 대한 연구가 점차적으로 증가하고 있다. 대부분의 도시인들은 하루 중 85% 이상을 실내에서 활동하고 있다.$^{1)}$ 실외보다도 실내에서 많은 시간을 보내는 만큼 실내 공기 오염도는 사람에게 직접적으로 영향을 미치게 된다. 하지만 대부분의 사람들은 대기오염의 심각성을 깊게 인식하고 있으면서도 실내 공기오염이 인간에게 미치는 영향이 더욱 크다는 점을 인식하지 못하고 있다.$^{2.4)}$ (중략)

• Journal of Korea Game Society
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• v.1 no.1
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• pp.94-101
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• 2001

Although the latest break-through of mobile industry has limited customers' free time to PC games, today's advancement of wireless mobile communication made this trend move to more specialized and diversified games implemented into cellular phones. Therefore, this paper intends to provide information on mobile games and strategic skills to prove its relative effects.

• Proceedings of the Korea Institute of Convergence Signal Processing
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• 2003.06a
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• pp.161-164
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• 2003

This research presents the parallel control scheme of PID servo-driver for shaping of the curved glass. The designed system consists of a PC, main controller and 11 servo-drivers. Each elements are connected by using RS-232C and 8-bit bus communication. In order to guarantee the stability and the control performance, we use the LM629, a precision PID motion controller, and LMD18200, a H-bridge on the servo-drivers. PC calculates position values of 11 DC motors by using the pre-determined curvature value and offers the user interface environment operator.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.36 no.4
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• pp.393-398
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• 2008

This paper suggests a GPS/INS navigation computer architecture that can be applied to small satellites. In order to implement a GPS/INS navigation system on a small satellite, the extreme environment in space such as radiation, micro-gravity, vacuum, etc. must be considered. In addition, a real-time processing ability is required for the GPS/INS navigation system since the formation flying of multiple small satellites is the ultimate goal. The developed navigation electronics utilizes a PowerPC-type MPC860T that has space environment heritage, and a pair of Atmega128s that has been implemented in KAUSAT-2 and has completed the space environment verification tests. The navigation algorithm is designed to work in VxWorks environment, ported in MPC860T.

• Journal of Institute of Control, Robotics and Systems
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• v.12 no.1
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• pp.66-71
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• 2006

Recently, there are lots of concerning on ubiquitous environment of robots and URC (Ubiquitous Robotic Companion). In this paper, a practical ubiquitous interface system far controlling mobile robots in indoor environments was proposed. The interface system was designed as a manager-agent model including a PC manager, a mobile manager, and robot agents for being able to be accessed by any network. In the system, the PC manager has a 3D virtual environment and shows real images for a human-friendly interface, and share the computation load of the robot such as path planning and managing geographical information. It also contains Hybrid Format Manager(HFM) working for transforming the image, position, and control data and interchanging them between the robots and the managers. Mobile manager working in the minimized computing condition of handsets has a mobile interface environment displaying the real images and the position of the robot and being able to control the robots by pressing keys. Experimental results showed the proposed system was able to control robots rising wired and wireless LAN and mobile Internet.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.387-389
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• 2014

It is preferred to the popularization of smart device business processes through mobile. The ratio of Internet access via mobile devices is reached 30% of PC in September 2012. It is reproduced in a mobile environment that security threats arising from the Internet. that is the characteristics of cyber security threats appearing on the mobile era. Web Application Service security research firm OWASP (The Open Web Application Security Project) issued Session Management threat. That threat will be reproduced in the mobile environment. But Mobile is significantly different from Desktop Computer about Session Management environment. This proceeding proposes a improved Session Management method in Mobile environment.

• Journal of Digital Convergence
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• v.15 no.11
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• pp.1-8
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• 2017

Depending on the degree of access to information, social inequalities, especially economic inequalities, can increase. The information gap can lead to an income disparity, leading to an economic disparity. Recently, as we have evolved into a smart environment, our society is in a more complex situation in the digital divide. In the smart environment, unlike the wired Internet based environment based on the existing PC, various media services that are not tied to the transmission means are emerging and the information gap in the smart environment is causing even more serious problems. The purpose of this study is to analyze the correlation between the informatization level and income of the Korean people based on the information gap index and the results of surveys conducted on the general public in Korea. If there is a difference in the level of income depending on the level of access, utilization, and utilization of information by the Korean people, a new approach or change is needed in the policy or strategy for resolving the digital divide of the Korean government.In particular, it should be accompanied by the consideration and concern for the information alienated group and efforts for the continuous support for the solution of the digital divide. The results show that the correlation between the informatization level of the Korean people and the household income is statistically significant (+). In addition, the correlation coefficient trend is positive, suggesting that the government needs various informatization policies to increase the informatization level of the general public in Korea.